Bright blue Historical Fiction Book Cover Design (Evoking mystery and thriller)

Visuals: A meticulously detailed depiction of a fragmented glass surface forms the backdrop, with reflections that give a glimpse of a cyber network composed of intertwining codes. In the foreground, the silhouette of a lone, enigmatic figure stands amidst ancient Hun warriors in motion, subtly woven with digital elements. Bright blue hues illuminate the entire scene, creating an electrifying atmosphere of intrigue and tension.

Typography: A sleek, modern sans-serif font, slightly condensed for a mysterious vibe. The letters appear as though they are formed from fragmented glass pieces, mirroring the shattered background, in a metallic blue finish.

Layout: The title "Mossad" dominates the cover's upper half, layered over the glass shards and digital codes. The silhouette figure is central, drawing the eye with a balance between the ancient and modern elements.

Explanation: The visual composition utilizes a blend of historical and digital elements to embody the thriller and mystery emotions, with a backdrop that speaks to a clash between the past and present, capturing the essence of a cyber-thriller involving codes and ancient forces. The choice of typography in modern, metallic hues plays into the high-stakes theme of espionage, while the arrangement ensures the title is the focal point, instantly grabbing attention. Matte paper with selective gloss not only provides a sophisticated feel but also highlights pivotal elements, ensuring that the cover maintains an air of mystery and allure at every angle.